numerade.com
SOLVED: Problem 3: The Feynman Rotator (25 points)In volume 2 of the Feynman Lectures on Physics, the author poses this paradox: Two small spheres, each with mass m and positive charge Q, are attached to a light plastic horizontal ring of radius R of negligible mass that can spin without friction around its vertical axis. On the axis is a long, stationary solenoid of length L, with n turns per length, and radius r, initially carrying current I, as shown. When the current in the solenoid is turn
26 oct 2023